Home / 127,126.38-175,361.49-79,296.66

Finding the Fourth Proportional to 127,126.38, 175,361.49 and 79,296.66

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Solution

The fourth proportional to 127,126.38, 175,361.49 and 79,296.66 is: 109,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,126.38 : 175,361.49 = 79,296.66 : x
  2. Step 2: Convert to fraction form
    127,126.38/175,361.49 = 79,296.66/x
  3. Step 3: Cross multiply
    127,126.38x = 175,361.49 × 79,296.66
  4. Step 4: Simplify right side
    127,126.38x = 13,905,580,449.62
  5. Step 5: Solve for x
    x = 13,905,580,449.62/127,126.38
  6. Step 6: Final answer
    x = 109,383.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.